Hign-concerned Chemical:NoneBrand Name:KKMOONOrigin:Mainland ChinaMaterial:PlasticsFeatures: 3-in-1 car instrument, integrating oil pressure gauge, water temperature gauge and voltmeter, With LCD digital display, clear and easy to view It can work under ultra-wide voltage, 40V can also work normally. When the voltage is too high or too low, it will flash and alarm. It has the function of anti-shake of oil level, and it can keep normal display even if the car is bumped or the oil float is opened. With self-learning function, it can fit the oil float resistance value of any model. 9-36V working voltage, suitable for most models on the market, such as car, truck, RV, SUV, etc. Specifications: Color: Black Material: Plastics Working Voltage: 9-36V Working Temperature: -40 - 50 Working Humidity: 45%-75%RH Voltage Test Range: 9-39V, Accuracy: 0.1% Water Temperature Measurement Range: -10-120, Accuracy: 0.1% Oil Test Range: 0-1.0MP, Accuracy: 0.1% Item Size: 96 * 63 * 31mm/ 3.8 * 2.5 * 1.2in Package Size: 123 * 93 * 52mm/ 4.8 * 3.7 * 2.0in Package Weight: 266g/ 9.4oz Packing List: 1 * Car Instrument 2 * Screw Shipping: 1.We guarantee to ship goods out within 24-72 hour after payment confirmation except holiday. 2.We ship by China post,HKpost EMS,DHL,Fedex,according to your choice when placing orders . 3.If you didn't receive the item after 45 days,please feel free to contact us.We will make all our effort to resolve the problem. 4.We are not responsible for delays causedby the customs,Import duties,taxes or other customscharges. Warranty: 1.All items have 1 year guarantee.IF your purchase do not meet merchantable quality, fitness for purpose or match the description, We can make sure your issues are resolved . 2.For wrongly-shipped items, Please contact us in 48 hours after delivery.We will arrange to deliver the correct items or return all your payment. 3.For defective or faulty products,please take photos or videos,we would resend or refund after confirmation.